Attachment for ribbon machines



Aug; 1943- A. SCHMITT ATTACHMENT FOR RIBBON MACHINES Filed Dec. 9, 1 942 2 Sheeps-Sheet l 42 INVENTOR 20 1. e0 4. \jc/vm/ff W a W ATTOENEY 2 1943- L. A. SCHMITT 2,328,102

I ATTACHMENT FOR RIBBON MACHINLES Filed Dec. 9', 1942 v 2 Sheets-Sheet 2 INKENTOR. 4/ Leo A. Jc/Im/ff ATTORNEY i-l of Figure 5,

Patented Aug. ,31, 1 943 n ntion relatessto, new and useful improvements in attachmentssfor machines emxplcying ribbons or the like and has for an object to provide an attachment for producing a duplicate ribbon or web simultaneously with the production of the ribbon or web on themachine to which it is attached. a Another object of theinvention is the provision of an attachment of t the. aforesaid character which is highlysuitable for ribbon duplication on a ribbon perforating machine; such as the Monotype keyboard" machine. of a composing system. i j A further object ofthe invention resides in the provision of a ribbon duplicating machine which "is designed for rapid detachable connection with a ribbon treating machine. r H

Still anotherobject of the invention is toprovide anattachment of the above character which is relatively simple in construction and eflicient nopbration.

greases. i ii i Inthe accompanying drawings which illustrate one formofthe invention,

Figure 1 is a perspective view of the some of the associatedpartsof the attachment; Figure 2 is a top plan viewofthe same with additional parts, i i

Figure3 is a vertical sectional view through the attachment mounted on a. perforating-maemne, r Figure 4 is a fragmentary' elevational view of one of the supply shaft bearings, i a

Figure 5 is an enlarged'section taken on line HofFiZure2, Figure6is a transverse section taken on lin gure'l is aperspective view of a tightener device, i i

Figure 8 is a side elevationof a drive pulley connectiomand e e Figure!) is an edge view of the same partly in section. U I i Referring to the drawings, wherein like reference characters denote like parts throughout,

r 2,328,102 ATTACHMENT Fon RIBBON monnvns l ,1

' Leo A.Sch1nitt, Washington, D. c.

, I ,1 Appl icationDecember 9,1942, No.4sa41'zl screams. 01.16449) sections by rivets or other si iitable fastening ele- 'ments I3. A similar bar Ill extendsbetween and connects with thesec'tions adjacent; what I term the front end. This constitutes thewmain frame structure and when employed incongii nction with .a perforating machine of the type shown in Figbody and i .i 20 Other objects and advantages oftheinvention will become apparent as the description pro- Tft E C j ure 3 the. plate sections vertical positions. At the rear end, eachsidesection has a longitudinel extension J5 bent tofor m an inward offset j ;with the outer. portiqn, provided with, a bearing slot 16.; A forwardextension l'l on each side sec .ztion terminates in an essentially disk shaped end piece l8 having a center bearingopening [9, At the r e partswmq t a s s shaped to provide an outwardly ofiset obliquely depenains up t es; sha in a inwardly :xprojectingboss 2i at -itsflower end. i The lower frontpart at each side of the frame has adepending straight lug 22; immediately rearward of an outwardly offset arcuatie claw 23 which may advantageously be in the form -of ,a downwardly andforwardly directed quadrant member.

To' the outer side of theframe sectionlfl is fastened a longitudinally disposed bracket 24 in the form of abanhavinga l J-shaped portion at the extension anda rearportion secured flat against the frame. A spindle 25; is. extended transversely through bearing apertures in the U- the support frame generally indicated at F em- I bocliesa pair of complementary side sections I0 and l I, each ofwhich is of approximately, arcuate configuration and advantageously of flat plate like rigid material, such as metal. I Thesesections are fixedly united in spaced parallel relation by a medially disposed spacer bar flanged at the ends fori connection with the [shaped barand thecenterof. the adjacent disk l8. Aninwardly projecting portion of this spindle extendsythrough the center opening of a grooved I pulley, 26 whichdsfixed thereon while. the outer :projection is f ttedlwith a-nut 21. e A {sleeve28 having an oil aperture 29 is mounted between the :frame extension :and the bracket and incioses the intermediate portionof the spindle. The inner face of: the pulley 2i carriesan eccentrically disposed stud 30.x i

Onthe outer'face' of .thefront extension of the frame is secureda laterally offset bracket 3! between which'and the framee'lementl'l is fixed the spindleibetw'eenthe pinsand the outer closed end o'fi'the sleeve lso asto; yieldingly urge the spindle to an inward position whereata part of the spindle, with a reduced nose 3]; protrudes inwardly, of the framein transverse alignment with spindle 25. QA'ieve'r 3.8 is formed atone end with "a hooked extension pivotally and slidably 4T em o t "a feeding meninges for example with a j machine known as tlie Monotyp'e keyboard ribbdnperforatorf it ismounted so that the arcuate of "the' machine'i I "bosses 21' can be 'slidabl'y fitted-into the slotted ybeariiigsoftli'e machine outwardly of-a shaft "journalle'd' therein-3' In this arrangement the mg tothat of the machine ribbon is the engaging a slotted lip 40 on the forward end of The opposite end of this lever the bracket 3!. has a'bifurcation 4| whose divided prongs encircle and firmly grip the respective pins 34. Thus, outward pivoted movement of the lever 38 will effect retraction of the spindle 33. I

On the outer face of each rearward frame extension I is mounted a yoke member 42 having the lower arm 43 extending longitudinally at the lower; end'go f'the bearing slot is. This arm has an'el'ongated slot through which a stop stud 45 connected to the support l5 projects. The complementary arm 46 of the yoke normally assumes a longitudinal position across the top of slot 16 with a substantial portion projecting above the top edge of the extension, as shown in full lines at Figure 4. At the rear end of the yoke formed a vertically laterally projecting lip 41 to which is fixed the forward end of a guide stem 43 disposed to slide through an aperture i9 in I the t'ransver'se offset of the frame extension; The

lip 4 a so provides a projection highly suitable "for manually retracting the yoke to'release'the supply shaft in order to mount a new roll thereon; "Applied compression spring 50 is sleeved about fine-stem between the offset and the'lip to' resiliently thrustthe yoke 'to its outward position limited by tl'i stop'stud'.

' attachment in association with claws fit against and'partl'y under the outer front bearing'bosses, as illustrated at Figure 3,'with the l 'gs'22 "atfth'e'inner faces of the perforator frame I and the 'bottomlon'gitudinal-- edges of the Side s'ectians- If! and-IFEjrfcorresponding top edges "When thus" positioned the attachment frame "is firmly' seated although quickly'ahd easily detachable.

A supply ro'llo'f ribbon-of a Width correspondplaced on the attaehmenrjwith-a supply shaft, indicated "at-5f; extended through the center. This shaft has reduced endjourha-lswhich are'placed upon *t rar' top "edges of the extensions and, asthe shaft carryin'gr lis moved inward, strike outer vertical edgesof the-upwardly projectingycke arilifs'ffli'* G'ontinued inward movellfi'i ell gf the' rollfbrces the yokes to retracted positions; as shown in -dotted lines at Figure 4,

so as to open the' slots" l6 and allowthe roll shaft journals to drop into these-slots'whereupon the springs restore the yokes to normally outward positions and lock the shaft againstdisplacement.

This provides a conveniently operable means for locking'the feed rollin position. ,A ribbon take- I upspoolis mounted on the front endof the frame and is placed in position by sliding the bore at -one end over the non-sliding. spindle -;with an oil center aperture in the spool end fitted l Qver rhesus 30.; .TheoppOsite-end of the spoolis mounted. in position by initially depressing the .level pla e can; etractihe s nd 3. W e upon the spool borei'salignedlyith the retracted spindle which, .uponrelea'se of the lever 38, is

was resilient type tramedever the peripheral may advantageml iy beQo'f the helical adjacent a web 56 withare'sililei'it split expansion ring.51 in the groove. The periphery of this cap is reversely curved to also provide an external groove 55-11 for the accommodation of "a drive elementsuch as the spring drive member 52. The corrugation forming the groove 55-a is axially slitted to render the same resilient for sliding the cap over the machine drive disk. It is also to be noted that the cap web 55 has a keyhole slot 58 for fitting over the pin on the disk to effect a positivedrive connection. This "construction affords means for'drivin'gthe wind- 7 ing spool on the attachment byiarid inunison with the winder on the machine.

In order to precludethe formationof folds or excessive looseness of theuribbonoriand as it unrolls from the supply roll. a .presse'r bari59 secured to the outer ends of .a pairof transversely spacedarms .80 frictionally bears on the 'rolliinxa positionparallel with its axisi, The inner ends of the arms '60 are'pivot'ally connected to .th'espacer bar i2.

The-ribbon reaches between the paper feed wheels and the supply roll 'onthe machine "are maintained in :taiit condition by ,a tightener device embo'dyingga U-shapedbodyti of rigid wire havingxan offset fizatithe closed end. The side. legs o'f this.body-ane bentangularly with their .freezendportions .doubledeto respectively embrace, thergroove'd center parts of a to provide pivots 64 resiliently held in bo're'sQG5 extending inward at the outer ends of the support legs 20. Thus'sufiicient tension is applied to the ribbons to obviate-undue looseness without danger of breakage. P i

' v This arran ement'affords'meansjwhereby, a duplicate ribbon Iearried bythe attachment is fed under the feed wheels of and subjectedto theperforating action of reciprocatory punches .of :aperforating machine to produce a duplicate connectionwithfprinting; involving repetition of subject matter such as box headings in tables and thelike; Furthermore, thetwo ribbonscould be employed upon a pair of casting units operated by a single workman.

It is to be understood that the form of the invention herein.shown anddescribed is to be as a preferred 'exanpiebr the same fan'dflthat various changes as to shape, siiefahd 'arrangemenu of parts may be resorted to withoiitdeparting from thespirit of the inventionand the scope or the summed-claims.

What rei'ainras m inventicnf'isz '1. n1anaaa-cilmentoithe character." described, a frame having apair of spaced'ap'art side sections," each or the-said fls'ide sections 'navinga attaching Claw at the lower front end andasupporting boss at the lower-rear end, '8, lb 11. of complementary jsha'fts upporting bearings at the llpp'el' rear en r theff'rame, and a pair Oftransvers'ely opposed winding spool supporting spindles mounted at the front upper part of the frame.

2. In an attachment of the character described,

a frame having a pair of spaced apart side secl tions, each of the, saidside sections havingan attaching claw at the lowerv front end and a supporting boss at the lower rear end, a pair of complementary shaft supporting bearings at the upper rear end of the frame, a pair of transversely opposed winding, spool supporting spindles mounted at the front upper part of the frame, one of the said spindles being axially retractible, and a lever hingedly mounted on the frame and connected with the retractible spin dle for selectively retracting the same.

3. In an attachment of the character described,

a frame having a pair of spaced apart side secporting boss at the lower rear end, a pair of complementary shaft supporting bearings at the upper rear end of, the frame, a pair of transversely opposed winding spool" supporting spindles tions, each of the said side sections having an attaching claw at the lower front end and a supmounted at the front upper part of the frame,

one of the said spindles being axially retractible', a lever'hingedly mounted on the frame and connected with the retractible spindle for selectively retracting the' same, the other of the spindles i being rotatably mounted on theframe, and a drive pulley fixed on thesame last mentioned spindle. 1 I

4. In an attachment of the character described, a frame having a pair of spaced apart side sections, each of the said side sections having an ate taching claw at the lower front end and a supporting boss at the lower rear end, a'pair of complementary shaft supporting bearings at the up-v per rear end of theframe, a pair of transversely opposed winding spool. supporting spindles mounted at the front upper part of the frame, one of the said spindles being axially retractible, a lever hingedly mounted on the frame and connected with the retractible spindle for selectively retracting the same, the :other of the spindles being rotatably mounted'on the frame, a drive pulleyfixed on the same last mentioned spindle, and means on each shaft supporting bearing for f releasablylocking a supply roll shaft, the said shaft locking means including spring projected yoke members disposed to releasably embrace the supply roll shaft ends.

5. In combinationwith'a ribbon feeding ma,-

chine and anattachment mountedthereon for feeding a duplicate ribbon through the machine,

machine having a frame provided with laterally projecting bearing bosses at one end and slotted bearings at the'otherend, an attachment com prising a frame havingside sections adapted to seat upon the'sides of the perforating machine frame, a pair of curved elements at one end of the, attachment frame disposed to' engage the bosseson the machine, a pair of projections adapted to fit into the bearing slots of the machine, means for supporting a ribbon supply roll transversely at one end of the attachment, and means at the opposite end of;the attachment for supporting a Winding spooltransversely thereon, whereby a ribbon on the attachment can be fed through the perforating machinesimultaneously with the ribbon on the latter.

7. ,An attachment for a ribbon machine of the type having longitudinally disposed seat forming surfaces on, the top and provided with bearing slots spaced transversely of their axis from bossed bearings, comprising a frame having the bottom adapted for seating on the seat forming surfaces of the machine, projections on the frame disposed to seat in the bearing slots,-means on the frame engageable with the bossed bearings to hold the frame against tilting, and bearings at opposite ends of the frame to support shafts of supply and take-uproll's of ribbon to be fed through the machine. I

8. An attachment for a ribbon machine of the type having bearings to support the shafts of spaced apart transverse ribbon supply and takeup rolls disposed for feeding a ribbon under a platen roll below and intermediate the said rolls,

comprising a-frame adapted for seating on the machine, means on the frame engageable with the machine for removablyholding the attachment in operative position, bearing means at one end of the frame for rotatably supporting a slip ply roll parallel with and offset transversely outward with relation to the supply roll of the machine, and bearing means at the opposite end of the frame for rotatably supporting a take-up roll parallel with and transversely inward with relation to thetake-up rollof the machine whereby to feed a duplicate ribbon under the platen roll simultaneously and incontiguous relation with the ribbon of the machine.

9. An attachment for a ribbon machine of the type having the top p ovided with seating surfaces, with bearings thereat for rotatably supporting spaced parallel ribbon supply and takeup rolls disposed: forfeeding a ribbon under a platen roll below the said rolls, comprising a frame adapted for seating on the seating surfaces, means on the frame engageable with the machine bearings for detachably holding the frame in operative position on the machine, bearing means at one end of the frame for rotatably supporting asupply ribbon roll parallel with and offset transversely outward with relation to the supply roll of the machine, and bearing means at the opposite end of the frame for rotatably supporting a take-up r011 parallel with and trans versely inward withrelation to'the take-up roll of the machine whereby to feed a ribbon under theplaten roll simultaneously withthe ribbon on the machine. i

LEO A. SCHlVlI'IT. 

